Baking Soda and Vinegar Experiment Worksheet
What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.
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- 1.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a seed (d) a balloon
- 2.True or false: salt water is an acid. (a) False (b) True
- 3.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) sugar (d) an empty bottle
- 4.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
- 5.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 6.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) orange juice (d) sugar water
- 7.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) a comb (d) a balloon
- 8.True or false: salt water is a base. (a) True (b) False
- 9.🫧 Which of these is neutral? (a) vinegar (b) tamarind water (c) sugar water (d) lemon juice
- 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
- 11.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) sugar (c) a tray for spills (d) baking soda
- 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a comb (c) vinegar (d) a tray for spills
- 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
- 14.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 15.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 16.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
- 17.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they freeze (d) they float apart
- 18.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
- 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the kind of balloon (d) the amount of vinegar
- 20.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
- 22.True or false: sugar water is neutral. (a) False (b) True
- 23.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
- 24.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) curd
- 25.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) the amount of vinegar (d) the same bottle
- 27.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
- 28.🫧 Which of these is a base? (a) soap solution (b) sugar water (c) vinegar (d) plain water
- 29.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 30.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 31.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) curd (d) orange juice
- 32.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 33.True or false: orange juice is a base. (a) True (b) False
- 34.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 35.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
- 37.True or false: detergent water is neutral. (a) False (b) True
- 38.True or false: vinegar is an acid. (a) True (b) False
- 39.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
- 40.True or false: sugar water is an acid. (a) False (b) True
Answer key
- a seed
- False
- an empty bottle
- rinse with clean water
- an acid
- sugar water
- a balloon
- False
- sugar water
- the same bottle
- sugar
- a comb
- keep it away from eyes
- False
- True
- True
- they react
- an ingredient ran out
- size of the balloon
- False
- we keep it the same
- True
- True
- curd
- not needed
- spoons of baking soda
- needed
- soap solution
- needed
- an acid
- baking soda water
- neutral
- False
- not needed
- not needed
- we keep it the same
- False
- True
- very little fizzing
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids